Abstract: This invention concerns a compound of formula a N-oxide, a pharmaceutically acceptable addition salt, a quaternary amine and a stereochemically isomeric form thereof, wherein ring A represents phenyl, pyridyl, pyrimidinyl, pyridazinyl or pyrazinyl; R1 represents hydrogen; aryl; formyl; C1-6alkylcarbonyl; C1-6alkyl; C1-6alkyloxycarbonyl; C1-6alkyl substituted with formyl, C1-6alkylcarbonyl, C1-6alkyloxycarbonyl, C1-6alkylcarbonyloxy; or C1-6alkyloxyC1-6alkylcarbonyl optionally substituted with C1-6alkyloxycarbonyl; X represents a direct bond; —(CH2)n3— or —(CH2)n4—X1a—X1b—; R2 represents C3-7cycloalkyl; phenyl; a 4, 5, 6- or 7-membered monocyclic heterocycle containing at least one heteroatom selected from O, S or N; benzoxazolyl or a radical of formula wherein said R2 substituent may optionally be substituted; R3 represents halo; hydroxy; optionally substituted C1-6alkyl; C2-6alkenyl or C2-6alkynyl, each optionally substituted; optionally substituted polyhaloC1-6alkyl; optionally substituted C1-6alky